The periodic comet visited by the Rosetta probe and its Philae lander in 2014.
Astro-modified EOS 600D,Revelation 300mm f/4 Newtonian reflector 14 x 1-minute exposures at ISO 6400, stacked on the comet in Deep Sky Stacker software (hence the trailed stars).
Post-processed to reduce noise, increase contrast and correct colour gradients caused by light pollution.
full exif